/* ============================================================
   Photo Art Studio — design system
   Clean, warm, responsive. Mobile-first.
   ============================================================ */
:root{
  --bg:#faf7f2;
  --bg-soft:#fffdf9;
  --ink:#22262b;
  --ink-soft:#5b6470;
  --line:#e8e2d8;
  --brand:#e25555;
  --brand-dark:#c73f3f;
  --brand-2:#3b82c4;
  --brand-3:#f4a72c;
  --teal:#2a9d8f;
  --shadow:0 10px 30px rgba(34,38,43,.08);
  --shadow-lg:0 18px 50px rgba(34,38,43,.14);
  --radius:18px;
  --radius-sm:10px;
  --maxw:1180px;
  --font:"Inter","PingFang SC","Noto Sans SC","Helvetica Neue",Arial,system-ui,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.65;
  font-size:16px;
  min-height:100vh;
  display:flex;flex-direction:column;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select{font-family:inherit}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- language toggling ---------- */
html[lang="zh"] .lang-en{display:none}
html[lang="en"] .lang-zh{display:none}
.lang-zh{display:none}
html[lang="zh"] .lang-zh{display:initial}
html[lang="zh"] .lang-zh-block{display:block}
.lang-zh-block{display:none}
html[lang="en"] .lang-en-block{display:block}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:100;
  background:rgba(250,247,242,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.3px}
.brand-logo{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--brand-3));
  display:grid;place-items:center;color:#fff;
  box-shadow:0 4px 12px rgba(226,85,85,.35);
}
.brand-logo svg{width:20px;height:20px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{
  padding:8px 12px;border-radius:9px;font-weight:600;font-size:14.5px;color:var(--ink-soft);
  transition:background .18s,color .18s;white-space:nowrap;
}
.nav a:hover{background:#fff;color:var(--ink);box-shadow:0 2px 8px rgba(34,38,43,.06)}
.nav a.nav-cta{background:var(--brand);color:#fff;box-shadow:0 4px 14px rgba(226,85,85,.3)}
.nav a.nav-cta:hover{background:var(--brand-dark);color:#fff}
.lang-switch{
  display:flex;align-items:center;margin-left:6px;border:1px solid var(--line);
  border-radius:99px;overflow:hidden;background:#fff;flex:none;
}
.lang-switch button{
  padding:6px 12px;font-size:13px;font-weight:700;color:var(--ink-soft);transition:all .18s;
}
.lang-switch button.on{background:var(--ink);color:#fff}
.lang-switch button:not(.on):hover{color:var(--ink)}
.menu-btn{display:none;width:40px;height:40px;border-radius:10px;align-items:center;justify-content:center}
.menu-btn svg{width:22px;height:22px}

/* mobile drawer */
.mobile-nav{
  display:none;position:fixed;inset:0;z-index:200;background:rgba(20,22,26,.45);
}
.mobile-nav.open{display:block}
.mobile-nav-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--bg-soft);padding:24px 20px;box-shadow:var(--shadow-lg);
  display:flex;flex-direction:column;gap:4px;overflow-y:auto;
}
.mobile-nav-panel a{
  padding:14px 12px;font-size:16px;font-weight:600;border-radius:10px;
}
.mobile-nav-panel a:hover{background:#fff}
.mobile-nav-close{display:flex;justify-content:flex-end;margin-bottom:10px}
.mobile-nav-close button{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:#fff}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(900px 420px at 12% -10%,rgba(244,167,44,.22),transparent 60%),
             radial-gradient(900px 420px at 95% 0%,rgba(226,85,85,.16),transparent 60%),
             var(--bg);
  padding:72px 0 56px;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:99px;
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:700;color:var(--brand-dark);
  box-shadow:0 4px 14px rgba(34,38,43,.06);margin-bottom:18px;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px rgba(42,157,143,.18)}
.hero h1{font-size:clamp(32px,5vw,56px);line-height:1.12;letter-spacing:-1.4px;font-weight:850}
.hero h1 .accent{
  background:linear-gradient(100deg,var(--brand),var(--brand-3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{margin:18px 0 26px;font-size:17.5px;color:var(--ink-soft);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:12px;
  font-weight:700;font-size:15px;transition:all .18s;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 22px rgba(226,85,85,.32)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#cfc7ba;transform:translateY(-1px)}
.hero-stats{display:flex;gap:28px;margin-top:34px;flex-wrap:wrap}
.hero-stats div strong{display:block;font-size:24px;font-weight:800;letter-spacing:-.5px}
.hero-stats div span{font-size:13px;color:var(--ink-soft)}
.hero-visual{position:relative}
.hero-photo{
  border-radius:24px;overflow:hidden;box-shadow:var(--shadow-lg);
  aspect-ratio:4/3;object-fit:cover;width:100%;
}
.hero-float{
  position:absolute;background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);
  padding:12px 16px;display:flex;align-items:center;gap:10px;font-size:13.5px;font-weight:600;
}
.hero-float svg{width:18px;height:18px;color:var(--brand)}
.hero-float.f1{top:14px;left:-14px}
.hero-float.f2{bottom:18px;right:-10px}
.hero-float small{display:block;font-weight:500;color:var(--ink-soft);font-size:12px}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-tight{padding:40px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:30px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,3vw,32px);letter-spacing:-.8px;line-height:1.2}
.sec-head p{color:var(--ink-soft);margin-top:6px;max-width:640px}
.sec-head a.more{font-weight:700;color:var(--brand-dark);font-size:14.5px;white-space:nowrap}
.sec-head a.more:hover{text-decoration:underline}

/* ---------- tool cards (photo backgrounds) ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tool-card{
  position:relative;border-radius:var(--radius);overflow:hidden;min-height:230px;
  box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s;display:block;
  isolation:isolate;
}
.tool-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.tool-card .card-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}
.tool-card:hover .card-photo{transform:scale(1.06)}
.tool-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,22,26,0) 20%,rgba(20,22,26,.82) 100%);z-index:1}
.tool-card .card-body{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;min-height:230px;padding:18px;color:#fff}
.tool-card .tag{
  align-self:flex-start;margin-bottom:10px;padding:4px 10px;border-radius:99px;
  background:rgba(255,255,255,.22);backdrop-filter:blur(6px);font-size:11.5px;font-weight:700;letter-spacing:.4px;
}
.tool-card h3{font-size:19px;font-weight:800;letter-spacing:-.3px}
.tool-card p{font-size:13.5px;opacity:.92;margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tool-card .go{margin-top:12px;font-size:13px;font-weight:700;display:inline-flex;align-items:center;gap:6px;opacity:.95}
.tool-card .go svg{width:14px;height:14px;transition:transform .2s}
.tool-card:hover .go svg{transform:translateX(3px)}
.tool-card .fav{
  position:absolute;top:12px;right:12px;z-index:3;width:36px;height:36px;border-radius:50%;
  background:rgba(255,255,255,.9);display:grid;place-items:center;color:#a9a29a;transition:all .2s;
}
.tool-card .fav.on{color:var(--brand)}
.tool-card .fav svg{width:18px;height:18px}

/* ---------- feature / value cards ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:240px;box-shadow:var(--shadow);isolation:isolate;transition:transform .22s,box-shadow .22s}
.feat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.feat-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}
.feat-card:hover .feat-photo{transform:scale(1.06)}
.feat-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,22,26,.15) 0%,rgba(20,22,26,.78) 100%);z-index:1}
.feat-body{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;min-height:240px;padding:22px;color:#fff}
.feat-card .ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px}
.feat-card .ico svg{width:22px;height:22px}
.feat-card h3{font-size:18px;font-weight:800}
.feat-card p{font-size:14px;margin-top:6px;opacity:.92}
.ico-coral{background:#fdecec;color:var(--brand)}
.ico-blue{background:#e7f0fa;color:var(--brand-2)}
.ico-amber{background:#fdf3e0;color:var(--brand-3)}
.ico-teal{background:#e2f3f0;color:var(--teal)}

/* ---------- article cards ---------- */
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.art-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.art-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.art-card .thumb{aspect-ratio:16/9;overflow:hidden;position:relative}
.art-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.art-card:hover .thumb img{transform:scale(1.05)}
.art-card .art-body{padding:18px;display:flex;flex-direction:column;flex:1}
.art-card .art-cat{font-size:11.5px;font-weight:800;color:var(--brand-dark);letter-spacing:.5px;text-transform:uppercase}
.art-card h3{font-size:16.5px;font-weight:800;line-height:1.35;margin:8px 0 8px}
.art-card p{font-size:13.5px;color:var(--ink-soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.art-card .art-meta{margin-top:auto;padding-top:12px;font-size:12px;color:#a49c90}

/* ---------- CTA banner ---------- */
.cta{
  background:linear-gradient(120deg,var(--ink) 0%,#33383f 100%);color:#fff;
  border-radius:24px;padding:44px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(244,167,44,.4),transparent 70%)}
.cta h2{font-size:clamp(22px,3vw,30px);letter-spacing:-.6px;position:relative;z-index:1}
.cta p{margin-top:8px;opacity:.85;max-width:560px;position:relative;z-index:1}
.cta .btn{position:relative;z-index:1}

/* ---------- footer ---------- */
footer{background:#fff;border-top:1px solid var(--line);margin-top:auto;padding:40px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;margin-bottom:26px}
.footer-grid h4{font-size:13px;text-transform:uppercase;letter-spacing:.8px;color:var(--ink-soft);margin-bottom:12px}
.footer-grid a{display:block;padding:4px 0;font-size:14px;color:var(--ink-soft)}
.footer-grid a:hover{color:var(--brand-dark)}
.footer-brand p{font-size:14px;color:var(--ink-soft);margin-top:10px;max-width:280px}
.footer-bottom{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--ink-soft)}

/* ---------- page header (sub pages) ---------- */
.page-hero{padding:52px 0 30px}
.page-hero h1{font-size:clamp(28px,4vw,42px);letter-spacing:-1px}
.page-hero p{color:var(--ink-soft);margin-top:10px;max-width:680px}
.crumbs{font-size:13px;color:var(--ink-soft);margin-bottom:14px}
.crumbs a{color:var(--brand-dark);font-weight:600}
.crumbs a:hover{text-decoration:underline}

/* ---------- tool page workspace ---------- */
.tool-wrap{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}
.workspace{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);
}
.dropzone{
  border:2px dashed #d8d0c2;border-radius:14px;padding:26px;text-align:center;color:var(--ink-soft);
  transition:all .2s;background:#fffdf9;cursor:pointer;
}
.dropzone:hover,.dropzone.drag{border-color:var(--brand);background:#fdf3f0}
.dropzone svg{width:34px;height:34px;color:var(--brand);margin-bottom:8px}
.dropzone p{font-size:15px;font-weight:600;color:var(--ink)}
.dropzone small{font-size:12.5px;display:block;margin-top:4px}
.dropzone .sample-link{
  margin-top:12px;display:inline-block;padding:7px 14px;border-radius:99px;background:#fff;
  border:1px solid var(--line);font-size:13px;font-weight:700;color:var(--brand-dark);
}
.canvas-stage{display:none;margin-top:18px}
.canvas-stage.show{display:block}
.compare{
  position:relative;border-radius:14px;overflow:hidden;background:#101214;
  touch-action:none;user-select:none;
}
.compare img,.compare canvas{display:block;width:100%;height:auto}
.compare .after{position:absolute;inset:0;overflow:hidden}
.compare .after canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.compare-handle{
  position:absolute;top:0;bottom:0;width:2px;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.15);z-index:5;cursor:ew-resize;
}
.compare-handle::after{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:36px;height:36px;border-radius:50%;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.3);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2322262b' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M8 3L4 7l4 4'/%3E%3Cpath d='M4 7h16'/%3E%3Cpath d='M16 21l4-4-4-4'/%3E%3Cpath d='M20 17H4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;
}
.compare-labels span{
  position:absolute;top:10px;padding:4px 10px;border-radius:99px;background:rgba(0,0,0,.55);
  color:#fff;font-size:11.5px;font-weight:700;letter-spacing:.4px;z-index:6;
}
.compare-labels .l-before{left:10px}
.compare-labels .l-after{right:10px}

/* controls */
.controls{display:flex;flex-direction:column;gap:14px;margin-top:18px}
.ctrl{display:flex;align-items:center;gap:12px}
.ctrl label{font-size:13.5px;font-weight:600;min-width:96px;color:var(--ink)}
.ctrl input[type=range]{flex:1;accent-color:var(--brand);height:6px}
.ctrl .val{font-size:12.5px;color:var(--ink-soft);min-width:38px;text-align:right;font-variant-numeric:tabular-nums}
.ctrl select{padding:8px 10px;border:1px solid var(--line);border-radius:9px;background:#fff;font-size:14px;flex:1}
.ctrl input[type=color]{width:44px;height:34px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:2px}
.ctrl-row{display:flex;flex-wrap:wrap;gap:10px}
.tool-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px;align-items:center}
.tool-actions .btn{padding:11px 18px;font-size:14px}
.spacer{flex:1}

/* right rail */
.rail-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:18px}
.rail-card h3{font-size:15px;font-weight:800;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.rail-card h3 svg{width:17px;height:17px;color:var(--brand)}
.rail-card ul{list-style:none}
.rail-card li{padding:7px 0;border-bottom:1px dashed var(--line);font-size:13.5px;color:var(--ink-soft);display:flex;gap:8px}
.rail-card li:last-child{border-bottom:none}
.rail-card li svg{width:15px;height:15px;color:var(--teal);flex:none;margin-top:2px}

/* related tools inside tool page */
.related{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.related a{
  position:relative;border-radius:12px;overflow:hidden;aspect-ratio:4/3;display:block;box-shadow:var(--shadow);
}
.related a img{width:100%;height:100%;object-fit:cover}
.related a span{
  position:absolute;inset:0;display:flex;align-items:flex-end;padding:8px;font-size:11.5px;font-weight:700;color:#fff;
  background:linear-gradient(180deg,transparent 40%,rgba(20,22,26,.78));line-height:1.25;
}

/* ---------- article page ---------- */
.article-hero{position:relative;border-radius:22px;overflow:hidden;margin:10px 0 28px;box-shadow:var(--shadow)}
.article-hero img{width:100%;max-height:420px;object-fit:cover}
.article-hero .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,22,26,.1),rgba(20,22,26,.75))}
.article-hero .ah-body{position:absolute;left:0;right:0;bottom:0;padding:26px;color:#fff}
.article-hero .ah-cat{font-size:12px;font-weight:800;letter-spacing:.6px;text-transform:uppercase;opacity:.9}
.article-hero h1{font-size:clamp(24px,4vw,38px);letter-spacing:-.8px;margin-top:8px;line-height:1.25}
.article-hero .ah-meta{margin-top:10px;font-size:13px;opacity:.9;display:flex;gap:14px;flex-wrap:wrap}
.article-body{max-width:760px;margin:0 auto}
.article-body h2{font-size:24px;letter-spacing:-.4px;margin:34px 0 12px}
.article-body h3{font-size:19px;margin:26px 0 10px}
.article-body p,.article-body li{font-size:16.5px;color:#3c434c;margin-bottom:14px}
.article-body ul,.article-body ol{padding-left:22px;margin-bottom:16px}
.article-body li{margin-bottom:8px}
.article-body blockquote{border-left:4px solid var(--brand);background:#fdf3f0;padding:14px 18px;border-radius:0 12px 12px 0;margin:18px 0;font-size:15.5px;color:#6b4a45}
.article-body .tip{background:#e2f3f0;border-radius:12px;padding:14px 16px;margin:16px 0;font-size:14.5px;color:#1e5a53}
.article-body .tip b{color:var(--teal)}
.article-body table{border-collapse:collapse;width:100%;margin:18px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.article-body th{background:#fff;font-weight:700}
.article-toc{background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:24px 0}
.article-toc h3{font-size:15px;margin-bottom:10px}
.article-toc a{display:block;padding:5px 0;font-size:14.5px;color:var(--ink-soft)}
.article-toc a:hover{color:var(--brand-dark)}
.article-tags{display:flex;gap:8px;flex-wrap:wrap;margin:26px 0}
.article-tags span{background:#fff;border:1px solid var(--line);border-radius:99px;padding:5px 12px;font-size:12.5px;color:var(--ink-soft)}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px}
.article-nav a{background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;padding:16px;font-size:14px}
.article-nav a small{display:block;color:var(--ink-soft);font-size:12px;margin-bottom:4px}
.article-nav a b{font-size:14.5px}
.article-nav a.next{text-align:right}

/* ---------- legal / about pages ---------- */
.prose{max-width:780px;margin:0 auto}
.prose h2{font-size:22px;margin:30px 0 12px;letter-spacing:-.4px}
.prose h3{font-size:17px;margin:22px 0 8px}
.prose p,.prose li{font-size:15.5px;color:#3c434c;margin-bottom:12px}
.prose ul,.prose ol{padding-left:22px;margin-bottom:14px}
.prose li{margin-bottom:6px}
.prose a{color:var(--brand-dark);font-weight:600;text-decoration:underline}
.prose table{border-collapse:collapse;width:100%;margin:16px 0;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:9px 11px;text-align:left}
.prose th{background:#fff}
.contact-row{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:26px}
.contact-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center}
.contact-card .ico{width:52px;height:52px;border-radius:14px;margin:0 auto 12px;display:grid;place-items:center;background:#fdecec;color:var(--brand)}
.contact-card .ico svg{width:26px;height:26px}
.contact-card h3{font-size:16px}
.contact-card p{font-size:14px;color:var(--ink-soft);margin-top:6px}
.contact-card a{color:var(--brand-dark);font-weight:700;word-break:break-all}

/* ---------- saved / bookmark drawer ---------- */
.save-toast{
  position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:#fff;padding:12px 20px;border-radius:12px;font-size:14px;font-weight:600;
  box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:all .3s;z-index:300;
}
.save-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.badge-pro{
  display:inline-flex;align-items:center;gap:4px;padding:3px 9px;border-radius:99px;font-size:11px;font-weight:800;
  background:linear-gradient(100deg,#f4a72c,#e25555);color:#fff;letter-spacing:.3px;
}
.badge-pro svg{width:11px;height:11px}

/* ---------- responsiveness ---------- */
@media (max-width:1020px){
  .card-grid,.feat-grid,.art-grid{grid-template-columns:repeat(2,1fr)}
  .related{grid-template-columns:repeat(3,1fr)}
  .tool-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{margin-top:10px}
  .hero-float.f1{left:6px}
  .hero-float.f2{right:6px}
}
@media (max-width:760px){
  .nav{display:none}
  .menu-btn{display:flex}
  .card-grid,.feat-grid,.art-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:44px 0}
  .hero{padding:48px 0 40px}
  .compare-labels span{font-size:10.5px}
  .article-nav{grid-template-columns:1fr}
  .contact-row{grid-template-columns:1fr}
  .cta{padding:32px 24px}
  .related{grid-template-columns:repeat(2,1fr)}
  .ctrl{flex-wrap:wrap}
  .ctrl label{min-width:82px}
}
@media (max-width:420px){
  .related{grid-template-columns:1fr 1fr}
  .hero-stats{gap:18px}
}

/* reduced motion */
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}